President Bush invited relatives of some of the 40 passengers and crew members who are portrayed in "United 93" to join him for a screening of the film at the White House Tuesday night.

Bush and his wife, Laura, planned to watch the film about the attacks in the family theater. The film focuses on the tragic drama aboard United Flight 93, the plane that crashed in rural Pennsylvania after passengers fought back against their hijackers.

"The president has always said that those who were on the flight, that the passengers and crew members of the flight, were heroes," said White House spokeswoman Dana Perino.